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HomeDatabaseMysql Tutorialmysql全量和增量备份脚本

全量: [root@masterleo]#catDBfullBak.sh#!/bin/bash#usemysqldumptofullybackupmysqldataBakDir=/root/leo/fullLogFile=/root/leo/full/bak.logDate=`date+%Y%m%d`Begin=`date+"%Y年%m月%d日%H:%M:%S"`cd$BakDirDumpFile=$Date.sqlGZDumpFile=$Date.sql.tg

全量:

[root@master leo]# cat DBfullBak.sh 
#!/bin/bash
#use mysqldump to fully backup mysql data

BakDir=/root/leo/full
LogFile=/root/leo/full/bak.log

Date=`date +%Y%m%d`
Begin=`date +"%Y年%m月%d日 %H:%M:%S"`
cd $BakDir
DumpFile=$Date.sql
GZDumpFile=$Date.sql.tgz
mysqldump -uroot -p123456 --all-databases --lock-all-tables --routines --triggers --events --master-data=2 --flush-logs > $DumpFile
tar zcvf $GZDumpFile $DumpFile
rm $DumpFile
Last=`date +"%Y年%m月%d日 %H:%M:%S"`
echo 开始:$Begin 结束:$Last $GZDumpFile succ >> $LogFile

参数注释:

--all-databases   #备份所有库
--lock-all-tables #为所有表加读锁
--routinge        #存储过程与函数
--triggers        #触发器
--events          #记录事件
--master-data=2   #在备份文件中记录当前二进制日志的位置,并且为注释的,1是不注释掉在主从复制中才有意义
--flush-logs      #日志滚动一次

结果如下:

[root@master full]# ls
20140728.sql.tgz  bak.log
[root@master full]# cat bak.log 
开始:2014年07月28日 19:02:59 结束:2014年07月28日 19:02:59 20140728.sql.tgz succ
开始:2014年07月28日 19:12:01 结束:2014年07月28日 19:12:01 20140728.sql.tgz succ
[root@master full]#

增量备份:

[root@master leo]# cat DBDailyBak.sh 
#!/bin/bash

BakDir=/root/leo/binlog/
BinDir=/var/lib/mysql

LogFile=/root/leo/binlog/bak.log
BinFile=/var/lib/mysql/mysql-bin.index

mysqladmin -uroot -p123456 flush-logs

Counter=`wc -l $BinFile|awk '{print $1}'`
NextNum=0

for file in `cat $BinFile`
do 
    base=`basename $file`
    NextNum=`expr $NextNum + 1`
    if [ $NextNum -eq $Counter ]
    then
        echo $base skip! >> $LogFile
    else
        dest=$BakDir/$base
        if(test -e $dest)
        then
            echo $base exist! >> $LogFile
        else
            cp $BinDir/$base $BakDir/
            echo $base copying >> $LogFile
        fi
    fi
done

echo `date +"%Y年%m月%d日 %H:%M:%S"` $Next Bakup succ~ >> $LogFile


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